Initial Results from Nobeyama Molecular Gas Observations of Distant Bright Galaxies
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<jats:title>Abstract</jats:title> <jats:p>We present initial results from the CO survey toward high-redshift galaxies using the Nobeyama 45 m telescope. Using a new wide bandwidth spectrometer equipped with a two-beam SIS receiver, we have obtained three new detections of high-redshift (z$=$ 1.6–3.4) submillimeter galaxies (SXDF 1100.001/HXMM02, SDP9, and SDP17), one tentative detection (SDSS J160705$+$533558), and one non-detection (COSMOS-AzTEC1). The galaxies observed during the commissioning phase are sources with known spectroscopic redshifts from previous optical or wide-band submillimeter spectroscopy. The derived molecular gas mass and line widths from Gaussian fits are $\sim$ 10$^{11}\ M_{\odot}$ and 430–530 km s$^{-1}$, respectively, which are consistent with previous CO observations of distant submillimeter galaxies and quasars. The spectrometer, which realizes a maximum of 32 GHz instantaneous bandwidth, will provide new science capabilities at the Nobeyama 45 m telescope, allowing us to determine redshifts of bright submillimeter selected galaxies without any prior redshift information.</jats:p>
収録刊行物
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- Publications of the Astronomical Society of Japan
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Publications of the Astronomical Society of Japan 64 (4), L2-, 2012
Tokyo : Astronomical Society of Japan
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詳細情報 詳細情報について
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- CRID
- 1522543655613371520
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- NII論文ID
- 10031062648
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- NII書誌ID
- AA1082896X
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- ISSN
- 00046264
- 2053051X
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- NDL書誌ID
- 025405269
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- 本文言語コード
- en
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- NDL 雑誌分類
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- ZM33(科学技術--宇宙科学)
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- データソース種別
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- NDL
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